// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//

package manager

import (
	"errors"
	"fmt"

	perrs "github.com/kumose/errors"
	"github.com/kumose/kmopt/pkg/cluster/clusterutil"
	"github.com/kumose/kmopt/pkg/meta"
	"gopkg.in/yaml.v3"
)

// ShowConfig shows the cluster's config.
func (m *Manager) ShowConfig(name string) error {
	if err := clusterutil.ValidateClusterNameOrError(name); err != nil {
		return err
	}

	metadata, err := m.meta(name)
	if err != nil && !errors.Is(perrs.Cause(err), meta.ErrValidate) {
		return err
	}

	topo := metadata.GetTopology()

	data, err := yaml.Marshal(topo)
	if err != nil {
		return perrs.AddStack(err)
	}

	fmt.Print(string(data))
	return nil
}
